<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card class="box-card">
      <div>
        <el-row :gutter="20">
          <el-col :span="8">
            <el-input placeholder="请输入内容" class="input-with-select" clearable v-model="queryInfo.query"
              @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>

        <el-table :data="userlist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态" prop="mg_state">
            <template slot-scope="scope">
              <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="200px">
            <template slot-scope="scope">
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="editDialogShow(scope.row)"></el-button>
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scope.row.id)"></el-button>
              <el-tooltip effect="dark" content="角色分配" placement="top-end" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRoleDialog(scope.row)">
                </el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>

        <!-- 分页 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 8]" :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
      </div>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="提示" :visible.sync="addDialogVisible" width="50%" @close="closeAddDialog">
      <!-- 对话框主体部分 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="closeEditDialog">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" :disabled="true"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserList">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="resetSetDialog">
      <p>当前的用户：{{roleList.username}}</p>
      <p>当前的角色：{{roleList.role_name}}</p>
      <p>分配新角色：
        <el-select v-model="curSelectedRole" placeholder="请选择">
          <el-option v-for="item in userInfo" :key="item.id" :label="item.roleName" :value="item.id">
          </el-option>
        </el-select>
      </p>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {

    // 邮箱的校验规则
    var checkEmail = (rule, value, callback) => {
      const emailReg = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
      if (emailReg.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    };

    // 手机号的验证规则
    var checkMobile = (rule, value, callback) => {
      const mobileReg = /^1([38][0-9]|4[579]|5[0-3,5-9]|6[6]|7[0135678]|9[89])\d{8}$/
      if (mobileReg.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    };

    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 1,
      addDialogVisible: false,
      editDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {
        id: '',
        username: '',
        mobile: '',
        email: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 5, max: 15, message: '长度在 5 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      setRoleDialogVisible: false,
      roleList: {},
      userInfo: {},
      curSelectedRole: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户数据的函数
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error("获取用户信息失败！")
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res.data)
    },
    // 改变页面所容纳条数的函数
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 跳转页数的函数
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //  更新用户状态函数
    async userStateChange (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 重置添加用户对话框
    closeAddDialog () {
      this.$refs.addFormRef.resetFields();
    },
    // 添加用户的确定按钮
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('添加用户失败')
        // 可以发起添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功！')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 修改用户对话框显示
    editDialogShow (userInfo) {
      this.editDialogVisible = true;
      this.editForm.username = userInfo.username;
      this.editForm.mobile = userInfo.mobile;
      this.editForm.email = userInfo.email;
      this.editForm.id = userInfo.id;
    },
    // 重置修改用户对话框
    closeEditDialog () {
      this.$refs.editFormRef.clearValidate()
    },
    // 修改按钮确定功能
    editUserList () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return this.$message.error('修改用户失败')
        //可以发起修改用户的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户信息失败！')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新用户信息列表
        this.getUserList()
        // 提示成功信息
        this.$message.success('修改用户信息成功！')
      })
    },
    async deleteUser (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      if (confirmResult === "cancel") {
        this.$message.info('已取消删除')
      } else {
        //发送删除请求
        const { data: res } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
        this.$message.success('删除用户成功！')
        this.getUserList()
      }
    },
    async showSetRoleDialog (role) {
      // console.log(role)
      // 当前角色列列表
      this.roleList = role

      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.userInfo = res.data
      console.log(this.userInfo)

      this.setRoleDialogVisible = true;
    },

    // 点击确定 分配角色
    async setRole () {
      // console.log(this.curSelectedRole)
      if (!this.curSelectedRole) {
        return this.$message.error('请选择要分配的角色')
      }
      // 分配用户角色  users/:id/role
      const { data: res } = await this.$http.put(`users/${this.roleList.id}/role`, { rid: this.curSelectedRole })
      console.log(res)
      if (res.meta.msg == "不允许修改admin账户") return this.$message.error('不允许修改admin账户!')
      if (res.meta.status !== 200) return this.$message.error('分配用户角色失败！')
      this.$message.success('分配用户角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    resetSetDialog () {
      this.curSelectedRole = ''
      this.roleList = []
    }
  }
}
</script>

<style lang="less" scoped>
</style>